Y-chromosomal DNA

Y-chromosomal DNA is genetic material found on the Y chromosome, which is one of the two sex chromosomes in humans (the other being the X chromosome). Typically, males have one X and one Y chromosome, while females have two X chromosomes. The Y chromosome is inherited exclusively from father to son, making it useful for tracing paternal lineage and ancestry. Studying Y-chromosomal DNA can help explore family connections, migration patterns, and historical populations, as certain markers remain relatively stable over generations, reflecting deep ancestral roots.